Facebook has been fighting a lawsuit over its "Sponsored Stories" advertising feature. The company previously offered to settle the suit for $10 million, which would be given to charity. However, U.S. District Judge Richard Seeborg has listed concerns with the proposed settlement and issued a request for more information on why the agreement doesn't award money to social network members.

Judge Seeborg stated that Facebook and attorneys for the plaintiffs could modify the proposed settlement to address his concerns.

"We continue to believe the settlement is fair, reasonable, and adequate," a Facebook spokesman said in a statement. "We appreciate the court's guidance and look forward to addressing the questions raised in the order."

The class-action suit was originally filed by five different Facebook members who claim that the Sponsored Stories feature violated California law by publicizing the "likes" of users without paying the user or giving them away to opt out. The case covers 100 million potential class members.

Part of the Facebook proposed settlement included ways for users to have more control over how their information is used. In addition to the $2 million to be paid to charity, Facebook also agreed to pay $10 million for legal fees.

While Facebook reconsiders its settlement offer, the company stock is plummeting after its IPO brought such high hopes for investors. The company stock recently fell to half its IPO price. As of this morning, Facebook stock is trading below $18 per share, half the IPO market value in May.